Endoexoprótese em membro torácico de cadela com osteosarcoma em Rádio e Ulna distal – relato de caso

Abstract

Osteosarcoma (OSA) is the most common primary malignant bone tumor in dogs, representing about 90% of all bone tumors in these animals. Occurs in large to giant dogs over six years of age, affecting dogs under three years of age. It can occur in any breed, but they are sometimes more prone to developing OSA, such as Boxer, Doberman, Labrador, German Shepherd, Rottweiler. The disease mainly affects appendicular skeletal bones such as the humerus, radius and ulna, femur and tibia. This is an aggressive and short-lived disease with high rates of metastasis, mainly to the lungs. The diagnosis of OSA in dogs is based on the history, clinical evaluation, imaging tests, aspiration puncture and biopsy. Treatment of the condition in dogs consists of surgical removal of the primary tumor, chemotherapy and, in some cases, radiotherapy. In search of a better quality of life for patients, some limb preservation techniques are possible for selected cases. The present work reports the case of a female Labrador Retriever breed with osteosarcoma in the distal region of the left radius and ulna and treated at the Veterinary Hospital of the UFMG Veterinary School. Distal limb amputation and fixation of an endoexoprosthesis in the remaining stump were performed, followed by chemotherapy.